Mechanical tees, as part of grooved piping systems, use gaskets secured by housings to attach a new line of pipe to an existing one. The mechanical force from the bolts and nuts combined with the gasket and lubricant creates a tight seal around a hole drilled into a run of pipe.

A grooved piping system is a method of joining pipes using grooved couplings rather than welding, flanging, or threading.

Sao Paulo International Exhibition Center, with an area of about 100,000 square meters, is one of the largest and most important exhibition halls in Brazil, and one of the most important exhibition and conference hosting venues in Sao Paulo, Brazil.